Courtesy of Monarch Watch: "The Larvae have landed" Michael Quinn wrote: Earlier it was reported that Monarch's have been passing through the Rio Grande Valley (South Texas) since at least Feb. 28. Upon close examination of our 7 milkweed plants (Asclepias curassavica) in mid-Valley on March 9th revealed 3 first instar larvae and 1 second instar larva on 3 plants. Later that day, more females came through and oviposited on several other milkweed plants. The only plant nectared on in our yard besides A. curassavica was Mexican Flame Vine (Senecio confusus). Most, it not all, of the Monarchs probably have nectared on S. confusus in Mexico both on the fall and spring migrations. The following genera are currently in flower in our yard but no Monarch was seen to even alight on any: Lantana, Phlox, Verbena, Gaillardia, Penta, Salvia, and Jessamine. Senecio confusus : ASTERACEAE. (Mexican Flame Vine). Herbaceous twining vine with intense scarlet-orange daisies along t